Admin Accounts Not Writing to Config
I have a User account with admin privileges that cannot make any changes to the pFsense configuration. For example, I attempted to set DNS Servers manually > Saved > Changes applied, but no changes actually made. This started with the upgrade to 2.3.
If I remember correctly, there is an additional permission that needs to be applied to the user, just unsure of what it is.
You really need to state the privs exactly (or screenshot them).
My user account is apart of the "Admins" group along with the default admin account. The assigned permissions is only "WebCfg - All Pages".
Are you certain that is all?
The symptoms fit a common misconfiguration where all privileges were selected (ctrl-A, for example) and the "Deny Config Write" privilege is among them.
Check the users and groups and make sure none of them have that privilege.